Knitting machine



Filed Deo. 30, 1946 8 Sheets-Sheet 1 l ATTORNEY."

Feb. 15, 1949. G. o. YOUNG 2,461,583

KNITTING MACHINE Filed Dec. 50, 1946 8 Sheets-Sheet 2 INVENTOR,

ATTORNEY Filed'DeG. 30, 1946 G. O. YOUNG KNITTING MACHINE 8 Sheets-Sheet 3 INVENTOR,

I Egger e ATTORNEY.

' Feb. 15, 1949. G. oi YoUNG KNITTINGA MACHINE 8 Sheets-Sheet 4 Filed DeG. 30, 1946 IN V EN TOR George 0. You BY ATTOFI N EV- G. o. YOUNG KNITTING `MACHINE Feb.15,1949.

Filed Deo. 50,'1946 8 Sheets-Sheet' 5 INVENTOR,

fe; 0. You@ ATTOHN EY.

'esheetsV-sheet e w w w N a Y M 01 .Y w md --U\\\ mmv Feb, 15,1949; G. o; YoNG.

' KNITTING MACHINE Filed Dec. 30, 1946 Feb. 15, 1949. G. o. YOUNG 24451583 KNITTING MACHINE Filed Deo. 50, 1946 8 sheets-sheet 7 [N V EN TOR,

ATTORNEY eage 0. You BY NGy Feb. 15, 1949.

AKNITIING MACHINE 8 Sheets-Sheet 8 Filed Deo. 3o. 1946 .Ivllle Y. m ma M N H m m m 1N.. V. ATM

0. e ma w Patented Feb. l5, 1949 UNITED STATES PATENT OFFICE KNITTING MACHINE George 0. Young, Robesonia, Pa., assignor to Vanity Fair Mills, Inc., Reading, Pa., a corporation of Pennsylvania Appiicaticn December 3o, 194s, serial No. 719,229

My invention relates to knittingmachines of the flat or tricot type.

Among the objects of my present invention are the following: o 1. To improve generally the machine disclosed in my application filed October 15, 1945, Serial No. 622,321.

2. To provide a machine in which the use of the rock shaft of the machine of the above application,

which has bearings for the needle-bar and the in Fig. 12 0f the needle-point movementtongue-bar carrying shafts, is eliminated. Egg. 115 is ai;1 enlargement of the diagram shown 3. To provide a machine in which the weight of in g- 2 Of t e mOVement 0f Din 22 i the needle bar, tongue bar and sinker bars is c Fg- 16 S a Schematic View Showing a proporearried entire1y by the main eccentric shaft of non 0f parts and eccentric throws and settings to the machine priwducel the movements indicated inFig. '12.

4. To provide a machine in which no reoiproig. 7 is an enlarged detail Vertical section cating rods or shafts are employed for supporting showing one means I1 for pivotally COIlneCtng the needle bar, the tongue bar and the sinker th; totrlguel to the needle. o bai.. n e rawings in which like numerals and 5 To provide a iiiiicioinein which the Sinker ber 20 ietters of reference indicate like parts in all the has an oscillating movement instead of a rectieures and 2 represent the end frames 0f the linear or reciprocating movement as in the mamach-ine, 3 the bese 4 the '00P eye-beams end 5 the chine of my aJppiioeiiion aforesaid. loluare hfollow longitudinal beams which connect 6. 'Ifo provide amachine in which adequate proe end rames into a rigid Structure. Vision is made to Support the main eooeritrio Sheff, Mounted in suitable end bearings 'l and interso that it can oai-ry the Weight imposed upon it mediate bearings 8 is the main eccentric shaft 6 Without Vibration oi. bending of the machine. On the shaft 6 at suitably spaced 7 To proi/ide improved means for adjusting the intervals are needle and tongue lifting and loweroooentrios so es to give the proper movements to ing eccentrics 9, around which the straps I5 of rho, nldiestongues and Siokem if'ieledle-bar carrying arms I4 are held as will more o e at ainment of the aforesaid objects and 11 y appear later. ends invention further resides in those novel de- As best shown in Fig. 2 the shaft 6 carries a tails of construction, combination and arrangehand wheel I0 and is coupled to an electric driv` ment of parts which will hereinafter be rst deing motor Il 0f any approved and suitable kind. scribed in detail and then be specifically pointed An additional bearing I2 is provided for the drivtolilit in the appendedd claims, refererixics1 being had to lnlgl end of the Isiaft 6. On its other end the shaft e accompanying rawings in W io as a worm for a purpose later to appear.

Fig. 1 is a front elevation of the left-hand por- Each arm I4 ('GWo or InOre, of course, being used) y tion of the machine, the cloth take-up mechanism hee a Wrist pin bearing I6 for the Wrist Din 22 to being omitted and p arts broken away. which the connecting rod 2l is provided at one of Fig 2 is a view similar to Fig. 1, showing the its ends. The other end of the rod 2| is provided right-hand portion ofthe machine. with an eccentric strap 23 to embrace the eccen- Fig. 3 is ari end elevation of the left-hand end tric I9 on an eccentric shaft 2U. The eccentric I9, of the machine. a via connecting rod 2 l, moves the needle bar trans- Fig 4. 1s an end elevation of the right-hand end versely back and forth in proper timed relation to of 1:the 5in achine. i i the movements of the other parts of the machine. Fig i. onisaasgilloosiraoi the line 5--5 of I'Ithe larriti I4 11s1l piliividegl otii each side with a wear pa e o w c is ol ed arcuate guide-Way Fig. 6 is a detail elevation looking in the direc- 50 plates I8 between which the arcuate arms 32 slide. tiolli xc:of 7121? arroil 1ndF1g-13. t The curvature of the slideway provided by the b s a e ai si e e eva ion of the sinkerplates I1 and I8 is concentric with the point Where agigarsriigxiiiril on the une 8 8 of Fig 7 thedilonguedist attachedt to ithe needle. (For the nee e an ongue s ruc ure see Patent No. Fig. 9 is a detail side elevation of the combined 55 2,403,961 issued July 16, 1943.

needle-bar and tongue-bar carrying unit.

15 Claims. (C1. 66-86) 2 Fig. 10 is a section on the line Ill-I0 of Fig. 9. Fig. 11 is a view similar to Fig. 9 showing the other side of the unit.

Fig. 12 is a diagrammatic View showing the rela-v tive movements of the principal parts of the machine.

Fig. 13 is an enlargement of the diagram shown in Fig. 12 of the movement of the pin 35.

Fig. 14 is an enlargement of the diagram shown The shaft 2,0 isV provided with a gear 25 that meshes with an idler gear 25 driven by a gear 21.

on the shaft 6 as best shown in Figs 2 and 4.

A needle bar 28 is mounted on the arms I4, to which bar the leads 29 that carry the needles 30, are secured (see Fig.

The tongue-bar carrier or needle-case carrier 3| is oscillatably mounted on the arm I4 through rod 38 is operated by an eccentric 31 on a third' shaft 36, the strap 39 of the connectingvrod A30|! embracing the eccentric. A tongue Ybar 40 1s attached to carrier 3|. The leads 4| which carry the tongues 42 are secured to the bar 4 0 in the usual manner. Pivotally mounted on the main shaft 6 by a split bearing 44 are sinker-bar carrying arms 43 to which a sinker bar 45 is secured, the sinker Vbar havingthe sinker leads `46 secured to -it`. The

sikr's are indicated by '41.,v

. 49 is the sinker-bar-rocking eccentric which is mounted on theshaft 36 and is connected to a w'rist 'pin 5| (carried vby the arm 43) by means of a connecting rod 50 Whose strap 49 embraces the eC'Chti/S. .Y u f- A gear'52, on the main shaft 5, meshes with an idleifgear 53 that meshes with a gear 54 on shaft 33 to drive'that shaft (see Figs. 2 and 4).

'Referring novv more particularly to Figs. 1 and 3, it will be observed that a worm shaft 55 is mounted in suitable bearings 55 on the end' frame Vand'carries aworm vWheel 51 that meshes with the Worin I3l on shaft 6. It also carries avvorm 59 that meshes with a Worm wheel 59 on a short shaft' 60 that is journalled, in a bracket 62 and has a pinion 5| to mesh With a gear 63. The gear 63 is adjustably mountedcn an' arm 54 and meshes with! a pinion `|55 on a cloth-guiding roller shaft 68.' e i "Asv shown best in Fig. 4, 61 indicates the cloth take-up roller shaft which carries a pulley 69. A belt passes around the pulley 69 and-a pulley orithe'shaft 65, a belt tightener 1 I being provided for' theusual purpose.

one end ofthe shaft 35 is a v vorm '1 2 which meshes vwith-a Worm Wheel 16 on a shaft 14 that is jbjur'nalledin suitable bearings 15, one of Which is a part'f' a plate 13 projected f rornthe end frame I, The shaft 14l has a pair of'gears 1'1 which mesh vvith the 4idler gears 18, on a stub shaft'19' thatintufrnmesh With'other idler gears 80 on a stub shaft 8|.v The gears 80 mesh Withpinions 84 on the'pattelfn Wheel shaft The shaft 82 is journalled inbearings 33 and carries the pattern Wheels 85.

"81 designates thread-guide-bar-carrier-supporting rods `Xedly-held in suitable bearings 99 in thev end frames. The thread-guide-bars 86 are carried by carriers 88 that slide on, but do not turn on, the rods 81, for racking purposes. 'Thebars 8,6 carry pattern-Wheel-engaging rollers 89, which are held in contact with the pattern Wheels 85 by springs 90.

The beams `are vindicated by 9|, and the beam brakes by 98. The thread tensioning mechanisms which I prefer to use, comprise each a shaft 93 mounted in suitable bearings'in the frame? The shaft 93 carries 'a drum-'like structure consistingA generallyr of 'enddiscs ||4 supporting' parallel, radiall'yjadinstable bars I I5 over whichjbarsvand over thread 4, guide rods ||3 and 92, the thread from the adjacent beam 9| passes.

The shafts 93 of the several tensioning means also are provided with sprockets or pulleys 94, 94a over which and a sprocket or pulley |00 on shaft 8, an endless belt 95 is passed whereby the tensioning mechanism is positively driven. By

. adjusting the positions of the rods or b ars I5 the take-up and slacking of theth'readat the proper times are provided for. In this application I lay no claim per se to the thread tensioning mechanism herein described as that constitutes the subject matter of my application Serial No. 718,487 led December 26, 1946.

Oil pans 9E vand 91 are provided as shown.

The several eccentrics 9, I9, 31 and 48 are adinstable and of` like construction. Therefore, a, description of one'fwill suice for all. Referring now tc'Figs. 9, l0 and 11 it will be seen that a sleeve I0| is pinned tothe shaft 5 and disposed eccentric .te the, Shaft:- A Segond Sleeve, f0.4 is 99ncentrically mounted on the sleeve 0I and 9perates in the bushing |08. The outerjcircun'iferenceof the second sleeve |04 is, however, eccentric to the sleeve I0 |.j The sleeve |0| has aiange ||l2`that is econcentriet with the' outer surface of sleeve |0| and is provided with an annular row of holes |03. The flange |0501; sleeve |04 has a similar row of holes |09, the l centers of all holes |03, `|`09`being equidis'tant from the axis of the sleeve |0I. The holes' of one flange are of an even number and those ofthe other: are one `less, in number. TheV flanges IUI, |03 are held together by jam nuts l'lthreaded'at |06 to thesleeve i|0| and engaging the sleeve |04. The flanges |02, |04 are held from turning with respect yto Veachuotlgier by means of `a pin 0` held in registering'holes by a keeper plate The plate is secured by a screw" ||2 threaded into a tapped hole corresponding to the position o f the hole |03 in ange The cloth C passes from the needles over guideY rods ||3, tc the roll'on shaft 66 and from lthence to the take-up roll on shaft E'L Operation As the machine operates the several4 eccentrics will impartl motion "such as will cause the needles torise through the sinkers and on the hook of the needles leaving the sinkers, they will pass to the right of the thread-guide eyesY (in Fig. 5) then to the left of the same and down again, hooking the threads T and drawing them down. On the up stroke; in passing :through thesink'ers the tongues open' the hooks of the needles and after vthe threads are hooked and before thehooks of the needles pass Vdovvn 'into the sinkers the tongues close the needle hooks and holdsame closed until the previous loops about the needles vhave been l graphs are'riumbered fromhero to 10'?. When' shafts 6 and Smmove from zero-to 5f? the point of4` the` needle will moyefrom zero (Eig. A14)?110 5a: Point' 3a villas?? freni. aere- (Fia 13a to. se:

"point 22 -will move from zero (Fig. 15) fto 5*: and

a point on shaft 20 will have turned a distance vfrom zero to 58L (Fig. 12) and soon.

- innig. 12 the center of shaft 3s is indicated by. 36;the center of eccentric 31 is indicated by dicated in Figs. 12 and 14 by 86, only two guides being indicated. c, A, Fig. 16 is a schematic view showing .ther proportions of the principal parts of an embodiment of the invention using two thread guides and which will produce approximately the curves in- ,dicated in Figs. 12 to 15 inclusive.

With the eccentric 9 set in its lowest position r'and the point of needle 30 eleven and 11% inches lowest position, vand pin 22 located one and inches below the same line, with shaft 36 located four and 3A; inches below the same line and located seven and inches to the left of-a line drawn'perpendicular to the horizontal line at 4the low position of the point of the needle and...

passing through the center of shaft 6,'with shaft 20fpositioned eight and 1/2 inches to the right of that perpendicular line (all as shown in Fig. 16), with the eccentric 31 set at four and 1/2 degrees from the horizontal and having a total throwV of 0.695 inches, with the eccentric 9 set with its center directly below that of shaft 6 and having a total throw of 0.782 inches, with eccentric i9 set at twenty-six and 1/2 degrees and having 'a total throw of 0.240 inches (all as shown in Fig. 16), the point of the needle will traverse approximately the path shown in Fig. 14, and the needle case (tongue 42) will be operated to close closedA while it passes through the previously formed loop or loops on the needle, Vagain opening the beard by the time the point of the beard leaves the sinker nib. y

With eccentric 48 set at nity-eight and SA; degrees from rthe horizontal and having a total throw of 0.280 inches, the sinker will move forward and backward in proper timed relation to cooperate with the needle in effecting the knitting operations.

It should be understood that the proportions, eccentric settings and throws, etc., above referred to (as indicated in Figs. 12 to 16 inclusive), are approximate only and may be some- `what varied according to the exact timing,

.the beard of the needle as the point of the beard passes into the sinker. nib and will hold the beard cludes a needle-bar-carrying arm; a main. ec-

centric-carrying shaft having an eccentric on which said arm is carried; a tongue-bar carrier carried by said needle-bar-carrying arm; a

needle bar mounted on said needle-bar-carrying arm; a needle mounted on. saidneedlebar; ,a vtongue bar mounted onsaid tongue-barcarrier;

a tongue mounted on 1 said `tongue fbar; and means for moving said needle-bar-carrying .arm

land said tongue-bar carrier transverselyin.

timed relation to the movements of said-,needlebar-carrying arm under the influence of saidcccentric to cause the needle and tongue to eilect their knitting cycles, I f L 2. An improved knitting maohineaccordingto claim 1 wherein saidtongues are pivotally connected to the needles and said tongue-bar carrier has movement in an .arc having its center approximately at the place where the tongue-is connected to theneedle. i f I 3. An improved knitting machine according to v claim 1 wherein a sinker bar with a sinkeris mounted onav sinker-bar-carrying arm;.said arm being pivotally carried by said eccentric-carrying shaft; and means is provided for rocking said sinker-bar-carrying 'arm on its pivot .in timed relation to the movements of said needles.` and tongues.I 4. An improved knitting machine accordingto claim l wherein the means for moving the needle-bar-carrying arm and the tongue-bar carrier transversely comprises two shafts having eccentrics, a connecting rod between they eccentric of one of said two shafts and said needlebar-carrying arm anda connecting rodbetween theeccentric of the other offsaid two shafts and said tongue-bar carrier. i 5. An improved knitting machine 'according to claim 1 wherein the means for moving the needlebar-carrying arm and the tongue-bar carrier transversely comprises two shafts having eccentrics, a connecting rod between the eccentric of one of said twofshafts and said needle-barlcarrying arm and a connecting ro'd between the eccentric of the other of said two` shafts and said tongue-bar carrier and wherein'the tonguebar carrier is mounted on said needle-barcarrying arm for oscillatable movement thereon.

6. An improvedknitting machine according to claim 1 wherein -themeans for moving-the needlebar-carryingv arm V-and the tongue-bar carrier transversely comprises two shafts havingeccenbar-carrying arm carried on the eccentric of said main eccentric shaft; a needle bar mounted on said-needle-bar-carrying arm; needles mounted on said needle bar; a second eccentricshaft; a connecting rod between the eccentric of said second eccentric shaft and said needle-bar-carrying arm for imparting rocking motion to said needle-bar-carrying arm on said 4main eccentric shafts eccentric; a tongue-bar carrier; tongues mounted on said tongue-bar carrier; said tonguebar carrier having at least one arcuate arm and said needle-bar-carrying arm having a guide way to receive saidy arcuate arm and support said tongue-bar carrier on said needle-bar-carrying racontes rnrmiaf-thirdeeentri shaft; andfaconnectin'grod lbe'tween'thefeccentric of saidthird ecentric 'shaft v'andlsaidtonguef-bar carrier.

L8. A: knitting .machineaccording to :claim '7 wherein is provided .a ,'sinker-b :ar-carryingarm npivota'lly'mounted on said maineccentric shaft; laisinkerlsuar withsinkers mountedon said sinker- .bar-.carrying arm; a second` eccentric on said :third ieccentric shaft; and a-connecting rodbetween said second eccentric andfsaid sinker-baricarrylngfarm;

i9. a knitting ymachine the. .improvement whichfincludes a vvnee'dle-bar-carrying arm;y a 'tongueebarcarrier mounted :on and movable on "saidarm; an ecentric shaft; a connecting rod :be-

tween said needle-bar-carrying larmv and said ieccentricshaft; a Ysecondv eccentric shaft; a coninenting-rod .between saiditcnguebar carrier :and .fsaidisecond f. eccentric t shaft; "and asingle means :fon-supporting Vthe weight, ofsaid :needle-barcarryingarm, said tongue-bar carrier. and part kofi-the weight of eachisaid Aconnecting,trod Aand t'imparting longitudinal 'reciprocations :to said needle-bar-carrying arm and the parts 'carried zthereby.

, 10.: t af. knitting vmachine employing thread guides, sinliers,y knitting4 needles-Land; tongues .hinged `to lthe needles; :the improvement which includesza main eccentric shaft :havinganrzeccentric; a needle-'bar-carrying arm mountedlatzone :end: on. said "eccentric: a.y needle barr mountedson .'Lthe other. end of said arm; wearfplatesoneach side of said arm; arcuatesuide 'plates von said -wear;plates; atongue-barcarrierihavingarcuate .arms engagingfsaid wear platesandsaid 'guide plates; a tongnesba'r mounted on said tonguebar carrier; afsecond eccentric :shaft :having an eccentric; a connecting rod'between'saidneedle- `bar-carrying arm and the eccentric on. said seclond eccentric shaft; `a third eccentric'shaft; a connecting rodbetween said .third eccentric shaft anddsaid tongue-bar carrier; 'and .means yfor driving vsaid shafts in timed relation. to one another'for knitting purposes. Y A* 11.1na kknittingmachine employing thread guides, f sinkers, knitting needles and tongues hinged to the tongues, theV improvement which ,includes a main veccentric shaft having aneccentric; a needle-bar-carrying armiv mounted at one end on`sraid eccentric; a needlevbar mounted on `the other end of said arm; wearplates onleach side of vsaid arm; Iarcuateguide plates'on said .wear plates; .a-tongue-bar carrier having arcuate @witnessing Seid weer, plates 'and Said guide plates; a tongue bar mounted on said tongue-bar carrier; asecond.- eccentric shaft. having anec centric; fa connecting rod between .saidneedlebar-carrying arm and the eccentric on said jseond eccentric shatra third eccentric shaft; a Ac: Jnrlecting rod ,betweensaid-third eccentric shaft an'di'said tongue-barL carrier; a sinker-bar-carrying arm-pivoted at one endto lsaid mainfeccentric shaft; asinker bar mounted onzthe other end of `:said:tinkerbar-carrying farm; a secondzeccentric `ongsaid third eccentric shaft; a connecting rod l.between said,.sinker-bar-carrying arml and said second eccentric-on said third eccentricjshaft; and means for drivingfsaid-shafts: in Vtimed rela- .tionfto` one `another for knitting; operations.

12.In a -knitting machine employing thread guids; .sinkerst knitting needles and 'tongues hinged to the tongues, the improvement which includes a main eccentric. shaft having :an eccentric; a needleebar-carrying arm mounted at one end on* said eccentric; a' needle Ibar mounted on thefother end 'of,said arm; Ywearplates 'on each side of said arm; arcuate guide plates on said wear'plates; a1 tongue-bar carrier having arcuate `arms engaging said Wear plates and said guide plates; a tongue bar v'mounted on said tongue-bar carrier; a secondeccentric shaft havingan eccentric; a connecting rod between said needlebar-carrying larm and the eccentric on said secondeccentric shaft; a third eccentric shaft; a connecting rod between said third eccentric shaft va'ndsaicl tongue-bar carrier; a ysinker-lcar-carrying arm pivoted at one end to said main eccentric shaft; a sinker bar mounted on the other end ofsaidsinker-barecarrying arm'a second eccenvvtric-`on said'thir'd eccentricshait; a connecting `rod between said sinker-bar-carrying arm and fsaid second reccentric on lsaid third eccentric shaft; means for Vdriving said shafts in timed relation to one another for knitting operations; and means by which the timing of the eccentrics may beindividually adjusted.

"13. A knitting machine according to claim '7 wherein said 'eccentrics each comprises asleeve eccentrically mounted 'on the respective shaft and having a flange provided with an annular ,series of pin holes, a 'second sleeve eccentrically mounted on said first sleeve and having a flange provided with an annular series of pin holes, the holes in one of said' flanges being one less in number than the holes in the other ange, said holes all'beingspaced radially an equal distance from the axis of the second sleeve whereby only one hole of .each sleeve `will register with one another at a time; and -apin secured removably inthe registering holes. to hold said sleeves against turning onecnthe other.

14. An improved knitting machine according to claim 1 wherein. the needie hasta point and wherein eccentrics are set tocause the point of .theneedle tofmove in aTigure eight.' -path substantially as shown in Fig. lauf the drawing.

.15. An improved knitting machine according to claim 1 wherein the needle has -a point and whereinthe tongue is pivotally connected tothe vneedlefandsaid tongue-bar carrier -has movement manY arc having its Vcenter approximately at .the

`-place where the-tongue is connected to the needle,

and wherein -the eccentrics are -set 4to cause .the

needle point to travel in a figureeight path substantially as shown in,Fig. 14 of thedrawing.

GEORGE 0. YOUNG.

REFERENCES CITED The f following references arev` yof record in `the Vlefof this patent:

' UNITED STATES PATENTS 

